The Setscrew, cataloged under National Stock Number 5305-00-487-6322, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Honeywell Intl Inc Defense Avionics Systems. Government technical data includes 13 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-00-487-6322 |
| Primary Part Number | MHCS0-604SS |
| Item Name | Setscrew |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Honeywell Intl Inc Defense Avionics Systems |
| Status | ACTIVE |
| Width Across Flats | 0.062 INCHES MINIMUM AND 0.062 INCHES MINIMUM AND 0.063 INCHES MAXIMUM0.063 INCHES MAXIMUM IN |
| Fastener Length | 0.250 INCHES NOMINAL0.250 INCHES NOMINAL IN |
| Thread Length | 0.250 INCHES NOMINAL IN |
| Material Document and Classification | MIL-S-7720 COMP 303 OR 303 SE MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.138 INCHES IN |
| Head Style | HEADLESS (SETSCREW)HEADLESS (SETSCREW) |
| Thread Direction | RIGHT-HAND |
| Point Style | CUP |
| Internal Drive Style | HEXAGONHEXAGON |
| Thread Class | 3A3A |
| Thread Quantity Per Inch | 32 |
| Material | STEEL CORROSION RESISTING OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| MHCS0-604SS PRIMARY | Honeywell Intl Inc Defense Avionics Systems (USA) |
| 331-604SS | Emcore Space & Navigation Corporation Div Space & Navigation (USA) |
| Reference | Meaning |
|---|---|
| MHCS0-604SS | 5/9 Secondary reference Honeywell Intl Inc Defense Avionics Systems Former Bendix Navigation and Control Systems |
| 331-604SS | 5/9 Secondary reference Honeywell Intl Inc Defense Avionics Systems |
| 331-604SS | 5/9 Secondary reference Honeywell Intl Inc Defense Avionics Systems Former Bendix Navigation and Control Systems |
NSN 5305-00-487-6322 is a Setscrew, manufactured by Honeywell Intl Inc Defense Avionics Systems, classified under FSC 5305, Screws. Status: active.
NSN 5305-00-487-6322 has 2 manufacturer part numbers on file: MHCS0-604SS (Honeywell Intl Inc Defense Avionics Systems), 331-604SS (Emcore Space & Navigation Corporation Div Space & Navigation).
Key specifications for MHCS0-604SS: Width Across Flats: 0.062 INCHES MINIMUM AND 0.062 INCHES MINIMUM AND 0.063 INCHES MAXIMUM0.063 INCHES MAXIMUM IN; Fastener Length: 0.250 INCHES NOMINAL0.250 INCHES NOMINAL IN; Thread Length: 0.250 INCHES NOMINAL IN; Material Document and Classification: MIL-S-7720 COMP 303 OR 303 SE MIL SPEC SINGLE MATERIAL RESPONSE OVERALL. 13 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.